path: lyx_2.5.0-1/development/autotests/single-test.cmake
  while (NOT lcount GREATER 30)
    MATH(EXPR lcount "${lcount} + 1")
    execute_process(COMMAND pidof ${LYX} OUTPUT_VARIABLE LYX_PID RESULT_VARIABLE pidstat OUTPUT_VARIABLE pidres)
    if (pidstat)
      break()


path: lyx_2.5.0-1/development/autotests/keytest.py
def get_proc_pid(proc_name):
    pid=os.popen("pidof " + proc_name).read().rstrip()
    return pid